Lynley in the Shower

I forget which episode this is but it shows the Inspector inspecting the bathroom in the place where he is staying. And it looks like it's a typical shower/tub (with a shower curtain) combo. Later on he is found to be in the shower and it's a straight shot with a clear shower door which hides nothing. PBS blurred out the nothing. But which was it? The tub/shower combo or the clear shower door?